Super-quantum states in SU(2) invariant 3 × N level systems
Sign Up to like & getrecommendations! Published in 2017 at "Annals of Physics"
DOI: 10.1016/j.aop.2016.12.006
Abstract: Abstract Nonclassicality of quantum states is expressed in many shades, one of the most stringent of them being a new standard introduced recently in Bharath and Ravishankar (2014), by expanding the notion of local hidden… read more here.
Keywords: super quantum; quantum states; invariant level; level systems ... See more keywords
Sub-kelvin thermometer for on-chip measurements of microwave devices utilizing two-level systems in superconducting microresonators
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/5.0029351
Abstract: We present a superconducting microresonator thermometer based on two-level systems (TLSs), which is drop-in compatible with cryogenic microwave systems. The operational temperature range is 50–1000 mK (which may be extended to 5 mK), and the… read more here.
Keywords: two level; thermometer; level systems; cryogenic microwave ... See more keywords
Nonuniversality and strongly interacting two-level systems in glasses at low temperatures
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aac930
Abstract: Recent experimental results showing untypical nonlinear absorption and marked deviations from well known universality in the low temperature acoustic and dielectric losses in amorphous solids prove the need for improving the understanding of the nature… read more here.
Keywords: two level; nonuniversality strongly; interacting two; level systems ... See more keywords
Two-level systems with periodic N -step driving fields: Exact dynamics and quantum state manipulations
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.053101
Abstract: Zhi-Cheng Shi,1,2 Ye-Hong Chen ,3 Wei Qin,3 Yan Xia,1,2,* X. X. Yi ,4,† Shi-Biao Zheng,1,2 and Franco Nori 3,5 1Fujian Key Laboratory of Quantum Information and Quantum Optics (Fuzhou University), Fuzhou 350108, China 2Department of… read more here.
Keywords: physics; two level; systems periodic; level systems ... See more keywords
Efficient entanglement purification protocols for d -level systems
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.042309
Abstract: We introduce entanglement purification protocols for d-level systems (qudits) with improved efficiency as compared to previous protocols. While we focus on protocols for bipartite systems, we also propose generalizations to multi-partite qudit systems. The schemes… read more here.
Keywords: level systems; entanglement purification; efficient entanglement; purification protocols ... See more keywords
Atomistic study of two-level systems in amorphous silica
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.014201
Abstract: Internal friction is analyzed in an atomic-scale model of amorphous silica. The potential energy landscape of more than 100 glasses is explored to identify a sample of about 700 two-level systems (TLSs). We discuss the… read more here.
Keywords: two level; level systems; study two; amorphous silica ... See more keywords
Depletion of Two-Level Systems in Ultrastable Computer-Generated Glasses.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.225901
Abstract: Amorphous solids exhibit quasiuniversal low temperature anomalies whose origin has been ascribed to localized tunneling defects. Using an advanced Monte Carlo procedure, we create in silico glasses spanning from hyperquenched to ultrastable glasses. Using a multidimensional path-finding… read more here.
Keywords: tunneling defects; two level; level systems; systems ultrastable ... See more keywords
Locating Two-Level Systems in a Superconducting Xmon Qubit
Sign Up to like & getrecommendations! Published in 2023 at "Applied Sciences"
DOI: 10.3390/app13116672
Abstract: One significant source of decoherence in superconducting circuits is known as two-level systems (TLSs), found in amorphous oxide layers. These circuits can, however, also be utilized as spectral and temporal TLS probes. Comprehensive investigations on… read more here.
Keywords: qubit; level systems; two level; systems superconducting ... See more keywords